Home / 87,316.70-130,975.86-34,739.60

Finding the Fourth Proportional to 87,316.70, 130,975.86 and 34,739.60

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Solution

The fourth proportional to 87,316.70, 130,975.86 and 34,739.60 is: 52,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,316.70 : 130,975.86 = 34,739.60 : x
  2. Step 2: Convert to fraction form
    87,316.70/130,975.86 = 34,739.60/x
  3. Step 3: Cross multiply
    87,316.70x = 130,975.86 × 34,739.60
  4. Step 4: Simplify right side
    87,316.70x = 4,550,048,331.18
  5. Step 5: Solve for x
    x = 4,550,048,331.18/87,316.70
  6. Step 6: Final answer
    x = 52,109.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.